Mode of making wrenches



E. SHAW. MODE OF MAKING WRENGHES.

(No Model.)

No. 458,797. Patented Sept. 1, 1891.

INVENTUFF M M g/2y ATTEST e 0., wumurua, vnsmaumN, o c

UNITED STATES PATENT OFFICE,

EDGAR SHAIV, OF LYNN, MASSACHUSETTS, ASSIGNOR TO FRANKLIN C. PAYSON,TRUSTEE, OF PORTLAND, MAINE.

MODE OF MAKING WRENCHES.

SPECIFICATION forming part of Letters Patent No. 458,797, datedSeptember 1, 1891.

Application filed April 18, 1891. Serial No. 389,466. (No model.)

To all whom it may concern:

Be it known that I, EDGAR SHAW, of Lynn, in the county of Essex andState of Massachusetts, have invented a new Method or Process of MakingSlide-Trenches; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, forming part of this specification.

My invention relates to the manufacture of what are known asslide-wrenches, (often called monkey-wrenches,) and especially to thatspecies of such wrenches in which the handle is composed of wood, orsome other non-metallic material, through which extends longitudinallysome sort of tang-like extension of the bar of the wrench. As heretoforemade, wrenches of this species have usually had the handle composed of asingle piece of wood, having a hole running centrally through itlengthwise and a rod-like tang or central extension of the bar passingthrough said hole, the slightly protruding end of the tang beingthreaded, and a cap-nut being screwed thereon to clamp the wooden handleendwise between said nut and the ferrule-like device, against which theinner end of the wooden handle has been seated.

I have devised a novel construction of wrench of the species alluded to,in which the handle is composed of a flattened or platelike extension ofthe bar and wooden scales, arranged one on each side of said extensionor tang of the wre11ch-bar,the said scales being confined endwisebetween the cap-like head formed on the end of said tang, and the outerend of the ferrule-like device of the wrench, and this novelconstruction of wrench I have made the subject of another applicationfiled simultaneously with this one.

The invention made the subject of this ap plication consists in thenovel method or process of manufacture by which I produce a wrenchembodying the structural features made the subject of my saidapplication on the improved article, which novel method will be foundfully described hereinafter, and will be more specifically pointed outand defined in the claim of this specification.

To enable those skilled in the art to understand and practice my presentimprovement in the method or art of making a wrench, such ashereinbefore alluded to, I will now proceed to more fully explain myinvention,

referring by letters to the accompanying drawings, which form part ofthis specification.

In the drawings I have shown precisely such a Wrench as is made thesubject of my other application for Letters Patent, and I have alsoillustrated the process of manufacture (of such a wrench) that is madethe subject of this case.

Figure 1 is a side view of a finished wrench made according to mypresent invention. Fig. 2 is a side View of the bar and its headconstituting the fixed jaw, as this part of the wrench appears,preparatory to the operation of drawing out the end of the bar, to formthe handle-tang. Fig. 3 is a side view showing the shape and conditionof the finished bar and its integral handle-tang or drawnout extension,and the sliding jaw and ferrule, assembled with the bar, but the latternot yet adjusted to and secured in its normal or final position on thebar. Fig. 4: is a partial or detail section at theoline 0c :0, Fig. 1.

In the several figures the same part will be found always designated bythe same letter.

A is the stationary jaw or head forged on one end of the bar B about asusual, and O is the movable jaw-frame with its usual jaw 0, arranged toslide freely on the bar B in about the ordinary manner. This bar has arecess milled in one edge or side, as seen at m to form a shoulder forengagement with one side of the head (I of the usual rosettescrew Dwhich latter, as shown, engages, as usual, with the nut or female screwcut in the frame 0 and has its centrally-recessed head 01 journaled onthe projecting end of a screw f that is mounted in thelaterally-projecting portion of the ferrule F g is the plate-likeextension or tang of the bar, and H are the wooden scales orhandlepieces, which are fitted and secured by a cross-rivet or pin 5 tothe tang g and the inner and outer ends of which respectively areoverlapped by the ferrule F and the cap-like head g of the tang.

To produce a wrench of the improved kind shown according to my novelmethod or process of manufacture, I first make the bar B in the formseen at Fig. 2, with its jaw or head A and after this piece or partshall have been subjected to the necessary milling-machine operations,to slab-oft the four sides of the bar, cut the recess m and otherwisefinish up the part for final use, I assemble with this part thefinished-up jaw-frame and sliding jaw O and also the completedferrule-like device F after the fashion illusstrated at Fig. 3that is tosay, after having gotten the sliding-jaw frame and the ferrule entirelyfinished and all the machine-work done on the bar and its jawI assemblethese parts, as shown at Fig. 3, pushing the sliding parts C C, and alsothe ferrule F well along toward, or as near as possible to, the jaw A. Ithen place the end Z of the bar B under a power-hammer and draw out andshape the surplus stock at the vicinity of this end of the bar into aflattened tang or plate-like eX- tension, which plate-like extension hasits eX- treme end upset vand formed into a cap-like head 9 and is givenits final and accurate shape or contour in a hot press. After havingthus shaped and finished up the tang 9 I slide the ferrule F toward theroot of the tang, and after having placed in position the rosette-screwD I then secure the ferrule in place on the bar by means of a pin orrivet, as seen at e. The head of the assembled rosette-screw is thenjournaled on the teat-like portion of the inserted ferrule-screw f andthe tool is completed by placing in position the wooden scales H andsecurely fastening them to the tang g by a cross rivet or pin 5, all asplainly shown in the drawings.

It will be seen that by this method or process of manufacture I amenabled to make a wrench of the type alluded to, in which the handle iscomposed partially of a tang that is integral with that end of the barwhich the ferrule-like device (necessary to be located at the inner endof the handle) has to encircle, and that is enlarged beyond the width ofthat part of the bar which the ferrule must fit, so that it conforms tothe size and contour of the wooden scales necessary to form (with saidtang) a handle of convenient size and shape.

It will be seen that by the use of the described method or process ofmanufacture any other tool or implement than a wrench might be producedin which it might be desirable to have a strong, simple, and durablehandle, composed of a tang or plate-like device, intogral with themetallic bar to be handled, and scales applied to each side of such tangand encompassed at their inner ends by a ferrulelike device having acentral opening of less width than that of the tang and its attachedscales or handle-pieces, and that, therefore, my present invention,though especially designed for and adapted to the manufacture ofwrenches of the type alluded to, might be utilized in the production ofother tools similar, as to their handle portions, to the improved wrenchherein shown.

Having now so fully explained my improved method or mode of manufactureof wrenches that those skilled in the art can understand and practice myinvention, what I claim as new, and desire to secure by Letters Patent,is-

As a novel method or process of manufacture of wrenches and analogoustools, first assembling the bar and those parts which are perforated forthe reception of and through the perforations of which one end of saidbar is passed, and then swaging out that end of said bar around and overwhich said assembling parts were passed to form a tang of proportionssuch as would not permit the assemblage of the parts after the formationof such tang, all substantially in the manner hereinbefore set forth.

In witness whereof I have hereunto set my hand this 21st day of March,1891.

EDGAR SIIA W.

In presence of JEROME DEWITT, MAUDE CUsHMAN.

